Files
tubestation/dom/base/DOMParser.cpp
Gabriele Svelto dc6fa2e86c Bug 1600545 - Remove useless inclusions of header files generated from IDL files in dom/ r=Ehsan
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.

find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
    interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
    if [ -n "$interfaces" ]; then
        if [[ "$interfaces" == *$'\n'* ]]; then
          regexp="\("
          for i in $interfaces; do regexp="$regexp$i\|"; done
          regexp="${regexp%%\\\|}\)"
        else
          regexp="$interfaces"
        fi
        interface=$(basename "$path")
        rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
            hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
            if [ $hits -eq 0 ]; then
                echo "Removing ${interface} from ${path2}"
                grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
                mv -f "$path2".tmp "$path2"
            fi
        done
    fi
done

Differential Revision: https://phabricator.services.mozilla.com/D55442
2019-12-04 15:01:19 +00:00

322 lines
11 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/DOMParser.h"
#include "nsNetUtil.h"
#include "nsDOMString.h"
#include "MainThreadUtils.h"
#include "SystemPrincipal.h"
#include "nsIStreamListener.h"
#include "nsStringStream.h"
#include "nsCRT.h"
#include "nsStreamUtils.h"
#include "nsContentUtils.h"
#include "nsDOMJSUtils.h"
#include "nsError.h"
#include "nsPIDOMWindow.h"
#include "mozilla/LoadInfo.h"
#include "mozilla/NullPrincipal.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/ScriptSettings.h"
using namespace mozilla;
using namespace mozilla::dom;
DOMParser::DOMParser(nsIGlobalObject* aOwner, nsIPrincipal* aDocPrincipal,
nsIURI* aDocumentURI, nsIURI* aBaseURI)
: mOwner(aOwner),
mPrincipal(aDocPrincipal),
mDocumentURI(aDocumentURI),
mBaseURI(aBaseURI),
mForceEnableXULXBL(false),
mForceEnableDTD(false) {
MOZ_ASSERT(aDocPrincipal);
MOZ_ASSERT(aDocumentURI);
}
DOMParser::~DOMParser() {}
// QueryInterface implementation for DOMParser
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMParser)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMParser, mOwner)
NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMParser)
NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMParser)
already_AddRefed<Document> DOMParser::ParseFromString(const nsAString& aStr,
SupportedType aType,
ErrorResult& aRv) {
if (aType == SupportedType::Text_html) {
nsCOMPtr<Document> document = SetUpDocument(DocumentFlavorHTML, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
// Keep the XULXBL state in sync with the XML case.
if (mForceEnableXULXBL) {
document->ForceEnableXULXBL();
}
if (mForceEnableDTD) {
document->ForceSkipDTDSecurityChecks();
}
nsresult rv = nsContentUtils::ParseDocumentHTML(aStr, document, false);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return nullptr;
}
return document.forget();
}
nsAutoCString utf8str;
// Convert from UTF16 to UTF8 using fallible allocations
if (!AppendUTF16toUTF8(aStr, utf8str, mozilla::fallible)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return nullptr;
}
// The new stream holds a reference to the buffer
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewByteInputStream(getter_AddRefs(stream), utf8str,
NS_ASSIGNMENT_DEPEND);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return nullptr;
}
return ParseFromStream(stream, NS_LITERAL_STRING("UTF-8"), utf8str.Length(),
aType, aRv);
}
already_AddRefed<Document> DOMParser::ParseFromSafeString(const nsAString& aStr,
SupportedType aType,
ErrorResult& aRv) {
// Since we disable cross docGroup node adoption, it is safe to create
// new document with the system principal, then the new document will be
// placed in the same docGroup as the chrome document.
nsCOMPtr<nsIPrincipal> docPrincipal = mPrincipal;
if (!nsContentUtils::IsSystemPrincipal(mPrincipal)) {
mPrincipal = SystemPrincipal::Create();
}
RefPtr<Document> ret = ParseFromString(aStr, aType, aRv);
mPrincipal = docPrincipal;
return ret.forget();
}
already_AddRefed<Document> DOMParser::ParseFromBuffer(const Uint8Array& aBuf,
SupportedType aType,
ErrorResult& aRv) {
aBuf.ComputeLengthAndData();
return ParseFromBuffer(MakeSpan(aBuf.Data(), aBuf.Length()), aType, aRv);
}
already_AddRefed<Document> DOMParser::ParseFromBuffer(Span<const uint8_t> aBuf,
SupportedType aType,
ErrorResult& aRv) {
// The new stream holds a reference to the buffer
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewByteInputStream(
getter_AddRefs(stream),
MakeSpan(reinterpret_cast<const char*>(aBuf.Elements()), aBuf.Length()),
NS_ASSIGNMENT_DEPEND);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return nullptr;
}
return ParseFromStream(stream, VoidString(), aBuf.Length(), aType, aRv);
}
already_AddRefed<Document> DOMParser::ParseFromStream(nsIInputStream* aStream,
const nsAString& aCharset,
int32_t aContentLength,
SupportedType aType,
ErrorResult& aRv) {
bool svg = (aType == SupportedType::Image_svg_xml);
// For now, we can only create XML documents.
// XXXsmaug Should we create an HTMLDocument (in XHTML mode)
// for "application/xhtml+xml"?
if (aType != SupportedType::Text_xml &&
aType != SupportedType::Application_xml &&
aType != SupportedType::Application_xhtml_xml && !svg) {
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
return nullptr;
}
// Put the nsCOMPtr out here so we hold a ref to the stream as needed
nsCOMPtr<nsIInputStream> stream = aStream;
if (!NS_InputStreamIsBuffered(stream)) {
nsCOMPtr<nsIInputStream> bufferedStream;
nsresult rv = NS_NewBufferedInputStream(getter_AddRefs(bufferedStream),
stream.forget(), 4096);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return nullptr;
}
stream = bufferedStream;
}
nsCOMPtr<Document> document =
SetUpDocument(svg ? DocumentFlavorSVG : DocumentFlavorLegacyGuess, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
// Create a fake channel
nsCOMPtr<nsIChannel> parserChannel;
NS_NewInputStreamChannel(
getter_AddRefs(parserChannel), mDocumentURI,
nullptr, // aStream
mPrincipal, nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL,
nsIContentPolicy::TYPE_OTHER,
nsDependentCSubstring(SupportedTypeValues::GetString(aType)));
if (NS_WARN_IF(!parserChannel)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
if (!DOMStringIsNull(aCharset)) {
parserChannel->SetContentCharset(NS_ConvertUTF16toUTF8(aCharset));
}
// Tell the document to start loading
nsCOMPtr<nsIStreamListener> listener;
// Keep the XULXBL state in sync with the HTML case
if (mForceEnableXULXBL) {
document->ForceEnableXULXBL();
}
if (mForceEnableDTD) {
document->ForceSkipDTDSecurityChecks();
}
// Have to pass false for reset here, else the reset will remove
// our event listener. Should that listener addition move to later
// than this call?
nsresult rv =
document->StartDocumentLoad(kLoadAsData, parserChannel, nullptr, nullptr,
getter_AddRefs(listener), false);
if (NS_FAILED(rv) || !listener) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
// Now start pumping data to the listener
nsresult status;
rv = listener->OnStartRequest(parserChannel);
if (NS_FAILED(rv)) parserChannel->Cancel(rv);
parserChannel->GetStatus(&status);
if (NS_SUCCEEDED(rv) && NS_SUCCEEDED(status)) {
rv = listener->OnDataAvailable(parserChannel, stream, 0, aContentLength);
if (NS_FAILED(rv)) parserChannel->Cancel(rv);
parserChannel->GetStatus(&status);
}
rv = listener->OnStopRequest(parserChannel, status);
// Failure returned from OnStopRequest does not affect the final status of
// the channel, so we do not need to call Cancel(rv) as we do above.
if (NS_FAILED(rv)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
return document.forget();
}
/*static */
already_AddRefed<DOMParser> DOMParser::Constructor(const GlobalObject& aOwner,
ErrorResult& rv) {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIPrincipal> docPrincipal = aOwner.GetSubjectPrincipal();
nsCOMPtr<nsIURI> documentURI;
nsIURI* baseURI = nullptr;
if (nsContentUtils::IsSystemPrincipal(docPrincipal)) {
docPrincipal = NullPrincipal::CreateWithoutOriginAttributes();
docPrincipal->GetURI(getter_AddRefs(documentURI));
} else {
// Grab document and base URIs off the window our constructor was
// called on. Error out if anything untoward happens.
nsCOMPtr<nsPIDOMWindowInner> window =
do_QueryInterface(aOwner.GetAsSupports());
if (!window) {
rv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
baseURI = window->GetDocBaseURI();
documentURI = window->GetDocumentURI();
}
if (!documentURI) {
rv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aOwner.GetAsSupports());
MOZ_ASSERT(global);
RefPtr<DOMParser> domParser =
new DOMParser(global, docPrincipal, documentURI, baseURI);
return domParser.forget();
}
// static
already_AddRefed<DOMParser> DOMParser::CreateWithoutGlobal(ErrorResult& aRv) {
nsCOMPtr<nsIPrincipal> docPrincipal =
NullPrincipal::CreateWithoutOriginAttributes();
nsCOMPtr<nsIURI> documentURI;
docPrincipal->GetURI(getter_AddRefs(documentURI));
if (!documentURI) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
RefPtr<DOMParser> domParser =
new DOMParser(nullptr, docPrincipal, documentURI, nullptr);
return domParser.forget();
}
already_AddRefed<Document> DOMParser::SetUpDocument(DocumentFlavor aFlavor,
ErrorResult& aRv) {
// We should really just use mOwner here, but Document gets confused
// if we pass it a scriptHandlingObject that doesn't QI to
// nsIScriptGlobalObject, and test_isequalnode.js (an xpcshell test without
// a window global) breaks. The correct solution is just to wean Document off
// of nsIScriptGlobalObject, but that's a yak to shave another day.
nsCOMPtr<nsIScriptGlobalObject> scriptHandlingObject =
do_QueryInterface(mOwner);
// Try to inherit a style backend.
NS_ASSERTION(mPrincipal, "Must have principal by now");
NS_ASSERTION(mDocumentURI, "Must have document URI by now");
nsCOMPtr<Document> doc;
nsresult rv = NS_NewDOMDocument(
getter_AddRefs(doc), EmptyString(), EmptyString(), nullptr, mDocumentURI,
mBaseURI, mPrincipal, true, scriptHandlingObject, aFlavor);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return nullptr;
}
return doc.forget();
}